Mathematics
Problem of The Day
2023
32

32

The product of five numbers is not equal to zero.

When you decrease each number by one, the product still stays the same.

Can you give an example of such numbers?

Answer

Yes. For example: 2, 2, -1, -2, -3

SOLUTIOn

Other way is to set 4 numbers to 2 and the last one to x.

In this case:

2 * 2 * 2 * 2 * x = 1 * 1 * 1 * 1 * (x - 1)

16x = x - 1

15x = -1

x = -1/15


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